| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Northwestern surveys | M-D | 150 m above ground | 0.40 km | 44,500 km |
| North-central surveys | M-D | 91 m above ground | 0.38 km | 60,000 km |
| Lake of the Woods | M-D | 300 m above ground | 0.93 km | 2,000 km |
| Roseau | M/R-D | 121.9 m | 9.60 km | 1,889 km |
| Thief River Falls | M/R-D | 121.9 m | 9.60 km | 2,277 km |